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Have the paper and electrolytic capacitors been replaced? If not operating it in that state is sort of like 'Russian roulette'....It could fail at any time.
In regards to picture:
If the capacitors have been replaced: Did you run the set with the jumper disconnected(not a recommended practice)? If you replaced the lead connecting the HO tubes top caps to the flyback; are you sure you connected the new lead to the same terminal as the old lead?...If not that is likely your problem with picture barring the possibility that you disturbed something else.
Regarding sound:
I don't think there is anything common to the horizontal and sound sections other than the main power supply. Meaning you either also harmfully disturbed something in the audio section or the main B+ power supply has failed.
Things to check: Do the tubes light? If not check for a blown line fuse and or filament fuse.
Is there B+ voltage within + or -20% of that listed on the schematic? If previous is yes and you have NO B+ then check for blown B+ fuse and B+ rectifier tube. If the voltage is way off start checking components in the power supply circuit.
Do you have HV at the CRT? To check this either use a 20KV rated HV probe, or holding a plastic handle insulated screwdriver by the handle, connect the blade to the chassis ground with a clip lead, and then bring the blade near the HV connection to the tube with the set running....You should draw an arc within 1/2"-2" of an exposed metal HV contact.
Do you hear any hum from the speaker?
Do you hear any noise from the speaker when turning the volume control of changing channels on the sets tuner?
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